Made from PeakProof(TM), a high-performance PFAS-free 2.5-layer nylon, the Treeline Jacket is ultra-lightweight and breathable. Overlapping venting panels and bonded zippers keep water out without trapping heat. This jacket gives athletes the confidence to perform in the most challenging of conditions. We love it for: weather-variable trail running Fabric: PeakProof TM - 100% Nylon Waterproof with sealed seams Waterproof Rating (WP): 29K+ mm Windproof Breathability/Moisture Permeability (MP) (B-1 = testing method): 40K+ g/m^2/24h Bonded zippers keep out water and strengthen durability Overlapped venting panels enhance breathability Ultra lightweight Relaxed fit Adjustable scuba-style hood Reflective heat transfers Packable into front left zip pocket Machine wash cold, air dry, don&';t bleach Designed in California, made abroad